docs: major docs updates (#2897)

docs/tools/file-document/filereadtool.mdx

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+---
+title: File Read
+description: The `FileReadTool` is designed to read files from the local file system.
+icon: folders
+---
+
+## Overview
+
+<Note>
+    We are still working on improving tools, so there might be unexpected behavior or changes in the future.
+</Note>
+
+The FileReadTool conceptually represents a suite of functionalities within the crewai_tools package aimed at facilitating file reading and content retrieval. 
+This suite includes tools for processing batch text files, reading runtime configuration files, and importing data for analytics. 
+It supports a variety of text-based file formats such as `.txt`, `.csv`, `.json`, and more. Depending on the file type, the suite offers specialized functionality, 
+such as converting JSON content into a Python dictionary for ease of use.
+
+## Installation
+
+To utilize the functionalities previously attributed to the FileReadTool, install the crewai_tools package:
+
+```shell
+pip install 'crewai[tools]'
+```
+
+## Usage Example
+
+To get started with the FileReadTool:
+
+```python Code
+from crewai_tools import FileReadTool
+
+# Initialize the tool to read any files the agents knows or lean the path for
+file_read_tool = FileReadTool()
+
+# OR
+
+# Initialize the tool with a specific file path, so the agent can only read the content of the specified file
+file_read_tool = FileReadTool(file_path='path/to/your/file.txt')
+```
+
+## Arguments
+
+- `file_path`: The path to the file you want to read. It accepts both absolute and relative paths. Ensure the file exists and you have the necessary permissions to access it.